In a car engine, gasoline (represented by C8H18) does not burn completely, and some CO forms along with CO2 and H2O. If 5 percent of the gasoline forms CO,

A)What is the ratio of CO2 to CO molecules in the exhaust?
B)What is the mass ratio of CO2 to CO?
C)What percentage of gasoline must form CO for the mass ratio of CO2 to CO to be 1/1?